Request failed with HTTP code 400. Response: {"statusCode":400,"message":"campaign_id should not be empty, publisher_id should not be empty, caller_number must be a valid US phone number (10 digits, with or without +1), caller_number should not be empty, caller_zip must be a valid 5-digit US zip code, caller_zip should not be empty","error":"Bad Request","timestamp":"2026-03-03T11:50:58.640Z","path":"/v1/rtb/ping","requestId":"bcf68b4f-7aec-49d6-9855-8afe9a476b92","code":"HTTP_400"}